Reference: Alabama Department of Archives & History. Custodian of the original pictures. Confederate Officers photo album. http://www.archives.alabama.gov/conoffalb/index.html
Samuel Cooper, ranking general officer in the Confederate service and Adjutant and Inspector General throughout the war, was born in Dutchess County, N. Y., June 12, 1798. Graduated from West Point in 1815, his long and faithful service in the United States Army was rewarded in 1852 by his appointment as Adjutant General. He had meantime married a sister of Senator James M. Mason of Virginia and had become identified with that state and with the Southern cause. He resigned from the old service on March 7, 1861 and was immediately appointed brigadier general (Regular) in the Confederate Army, and then general on August 31, 1861 to rank from May 16, 1861, being confirmed the day of appointment. Though he was never in field command, his organizational abilities and knowledge of routine procedure made his services invaluable to the Confederacy, particularly in the early days of the war. General Cooper, upon the surrender of the forces of General Johnston in May 1865, turned over the records of his office intact to the United States authorities, thereby making a priceless contribution to the history of the period. Retiring to his farm near Alexandria, Virginia, he died there December 3, 1876. He was buried in Christ Church Cemetery, Alexandria.
Ref: Generals in Gray, Lives of the Confederate Commanders by Ezra J. Warner. Printed by Louisiana State University Press, Baton Rouge and London.